Cache update and added CFG_UNIFY_CACHE

[platform/kernel/u-boot.git] / drivers / net / mcffec.c

diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
index d1c84ca..11f6721 100644 (file)
--- a/drivers/net/mcffec.c
+++ b/drivers/net/mcffec.c
@@ -2,7 +2,7 @@
  * (C) Copyright 2000-2004
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
- * (C) Copyright 2007
+ * (C) Copyright 2007 Freescale Semiconductor, Inc.
  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
  *
  * See file CREDITS for list of people who contributed to this
@@ -28,8 +28,7 @@
 #include <malloc.h>
 
 #include <asm/fec.h>
-#include <asm/m5329.h>
-#include <asm/immap_5329.h>
+#include <asm/immap.h>
 
 #include <command.h>
 #include <config.h>
@@ -41,17 +40,8 @@
 #undef MII_DEBUG
 
 /* Ethernet Transmit and Receive Buffers */
-#define DBUF_LENGTH  1520
-
-#define TX_BUF_CNT 2
-
-/*
- NOTE: PKT_MAXBUF_SIZE must be larger or equal to PKT_MAXBLR_SIZE,
-          see M54455 User Manual for MAX_FL of Receive Control Register for more
-          description. If PKT_MAXBUF_SIZE set to 1518, the FEC bandwidth will
-          reduce to about 20~40% of normal bandwidth. Changing PKT_MAXBLR_SIZE
-          will not make any improvement on speed
-*/
+#define DBUF_LENGTH            1520
+#define TX_BUF_CNT             2
 #define PKT_MAXBUF_SIZE                1518
 #define PKT_MINBUF_SIZE                64
 #define PKT_MAXBLR_SIZE                1520
@@ -102,12 +92,6 @@ struct fec_info_s fec_info[] = {
 #endif
 };
 
-/*
-  * FEC Ethernet Tx and Rx buffer descriptors allocated at the
-  *  immr->udata_bd address on Dual-Port RAM
-  * Provide for Double Buffering
-  */
-
 int fec_send(struct eth_device *dev, volatile void *packet, int length);
 int fec_recv(struct eth_device *dev);
 int fec_init(struct eth_device *dev, bd_t * bd);
@@ -182,6 +166,9 @@ int fec_send(struct eth_device *dev, volatile void *packet, int length)
        /* Activate transmit Buffer Descriptor polling */
        fecp->tdar = 0x01000000;        /* Descriptor polling active    */
 
+#ifdef CFG_UNIFY_CACHE
+       icache_invalid();
+#endif
        j = 0;
        while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
               (j < MCFFEC_TOUT_LOOP)) {
@@ -191,6 +178,7 @@ int fec_send(struct eth_device *dev, volatile void *packet, int length)
        if (j >= MCFFEC_TOUT_LOOP) {
                printf("TX timeout\n");
        }
+
 #ifdef ET_DEBUG
        printf("%s[%d] %s: cycles: %d    status: %x  retry cnt: %d\n",
               __FILE__, __LINE__, __FUNCTION__, j,
@@ -198,7 +186,7 @@ int fec_send(struct eth_device *dev, volatile void *packet, int length)
               (info->txbd[info->txIdx].cbd_sc & 0x003C) >> 2);
 #endif
 
-       /* return only status bits */ ;
+       /* return only status bits */
        rc = (info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS);
        info->txIdx = (info->txIdx + 1) % TX_BUF_CNT;
 
@@ -212,6 +200,9 @@ int fec_recv(struct eth_device *dev)
        int length;
 
        for (;;) {
+#ifdef CFG_UNIFY_CACHE
+                       icache_invalid();
+#endif
                /* section 16.9.23.2 */
                if (info->rxbd[info->rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
                        length = -1;
@@ -257,12 +248,6 @@ int fec_recv(struct eth_device *dev)
        return length;
 }
 
-/**************************************************************
- *
- * FEC Ethernet Initialization Routine
- *
- *************************************************************/
-
 #ifdef ET_DEBUG
 void dbgFecRegs(struct eth_device *dev)
 {
@@ -419,7 +404,7 @@ int fec_init(struct eth_device *dev, bd_t * bd)
        struct fec_info_s *info = dev->priv;
        volatile fec_t *fecp = (fec_t *) (info->iobase);
        int i;
-       u8 *ea;
+       u8 *ea = NULL;
 
        fecpin_setclear(dev, 1);
 
@@ -549,7 +534,9 @@ int mcffec_initialize(bd_t * bis)
 
        for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
 
-               dev = (struct eth_device *)malloc(sizeof *dev);
+               dev =
+                   (struct eth_device *)memalign(CFG_CACHELINE_SIZE,
+                                                 sizeof *dev);
                if (dev == NULL)
                        hang();
 
@@ -565,16 +552,19 @@ int mcffec_initialize(bd_t * bis)
 
                /* setup Receive and Transmit buffer descriptor */
                fec_info[i].rxbd =
-                   (cbd_t *) memalign(32, (PKTBUFSRX * sizeof(cbd_t) + 31));
+                   (cbd_t *) memalign(CFG_CACHELINE_SIZE,
+                                      (PKTBUFSRX * sizeof(cbd_t)));
                fec_info[i].txbd =
-                   (cbd_t *) memalign(32, (TX_BUF_CNT * sizeof(cbd_t) + 31));
-               fec_info[i].txbuf = (char *)memalign(32, DBUF_LENGTH + 31);
+                   (cbd_t *) memalign(CFG_CACHELINE_SIZE,
+                                      (TX_BUF_CNT * sizeof(cbd_t)));
+               fec_info[i].txbuf =
+                   (char *)memalign(CFG_CACHELINE_SIZE, DBUF_LENGTH);
 #ifdef ET_DEBUG
                printf("rxbd %x txbd %x\n",
                       (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
 #endif
 
-               fec_info[i].phy_name = (char *)malloc(32);
+               fec_info[i].phy_name = (char *)memalign(CFG_CACHELINE_SIZE, 32);
 
                eth_register(dev);